Title: Sound track unit for audio-visual apparatus

Abstract: A device for the viewing of photo-images and the presentation of sound recordings corresponding to such photo-images, which device may be controlled by the user to provide substantially random access to any photo-image and the sound recording corresponding thereto, is disclosed. A modular construction of such device and its adaptability to either hand-held or projection embodiments is described. A novel tone arm system as well as a novel turntable driving mechanism, a novel disc type record unit and a novel record changing mechanism is disclosed.

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Other info:

Inventors: Nessel, Jiri M. (Palo Alto, CA, US)

Application Number: 421986
Filing Date: 1973-12-05
Publication_date: 1976-01-06
Assignee: Richards; Victor (San Francisco, CA)
Primary Class(es): 369/273 360/133, 369/64, 369/69, 369/77.11, 369/197, 369/213
Other Classes:
US Patent Ref:

3062552	Nov, 1962	Schwarz	274/1.
3416150	Dec, 1968	Lindberg	360/133.
3593327	Jul, 1971	Shill	360/133.
3706857	Dec, 1972	Lynott	360/133.
3818986	Jun, 1974	O'Brien	35/8.
3829207	Aug, 1974	Licitis	353/120.

Other Refs:
Primary Examiner: Aegerter, Richard E.
Assistant Examiner: Mirabito, A. J.
Attorney: Phillips, Moore, Weissenberger Lempio & Strabala